Control of Cavity-Induced Drag Using Steady Jets

Haddabi, N. A., Kontis, K. , Zare-Behtash, H. and Winblad-Rasmussen, S. (2015) Control of Cavity-Induced Drag Using Steady Jets. European Drag Reduction and Flow Control Meeting, Cambridge, England, 23-26 Mar 2015.

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Separated shear layer oscillations in open cavities can induce drag, noise and vibration. This issue has many aerospace applications such as Landing gears and control surfaces [1]. Recently, phase-cancellation [1] and offinstability frequency excitation [2] & [3] approaches have been incorporated in different open-loop and feedback control systems. Despite the high control performance of these systems, further enhancement is still possible. In this study, steady jets, as shown in fig. 1, are forced through 2mm, two-dimensional slots at the leading and trailing edges of the cavity. In order to study the performance of this novel approach, different cases will be examined, including: jet combination (blowing from cavity leading edge, suction from cavity leading edge and blowing-suction), jet angle (parallel or deflected jet) and jet-to-free stream velocity factor /.E

Item Type:Conference or Workshop Item
Glasgow Author(s) Enlighten ID:Kontis, Professor Konstantinos and Zare-Behtash, Dr Hossein
Authors: Haddabi, N. A., Kontis, K., Zare-Behtash, H., and Winblad-Rasmussen, S.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Copyright Holders:Copyright © 2015 The Authors
Publisher Policy:Reproduced with the permission of the authors

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